Pure hydrocarbon cycles in TMC-1: Discovery of ethynyl cyclopropenylidene, cyclopentadiene, and indeneJ. Cernicharo, M. Agúndez, C. Cabezas, B. Tercero, N. Marcelino, J. R. Pardo and P. de VicenteA&A, 649 (2021) L15DOI: https://doi.org/10.1051/0004-6361/202141156
